A high temperature rise across a furnace heat exchanger may cause _____

a. condensation in the vent
b. higher flue gas temperatures
c. carbon monoxide formation
d. lower flue gas temperatures


b

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Which term describes the ability of a material to conduct lines of force?

A. residual magnetism B. retentivity C. permeability D. magnetic saturation

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Beets need a soil pH above 6.5

Indicate whether the statement is true or false

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When there are multiple 12-volt batteries in a bank, how must they be connected in a truck with a chassis voltage of 12-volts?

A. in series B. in parallel C. both A and B D. neither A nor B

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What is a diode??

Fill in the blank(s) with the appropriate word(s).

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